Re: LSI SAS2008 Option Rom Failure

[Anthony PERARD <anthony.perard@citrix.com>]

On 19/07/12 08:22, Ian Campbell wrote:
> On Thu, 2012-07-19 at 04:56 +0100, David Erickson wrote:
>> Ok solved the compilation problem, the issue is the upstream configure
>> script is testing for xen by compiling code that includes xs.h,
>> however xs.h now throws a deprecated warning, and the configure script
>> compiles with the flag that makes any warning an error.  The solution
>> is to replace all instances of xs.h in
>> xen-unstable.hg/tools/qemu-xen-dir/configure with xenstore.h after the
>> make has failed, then run it again and it will work.
>
> I think Anthony sent a patch upstream for this, but I suppose it hasn't
> been committed yet -- Anthony is that right?

Actually, no. I saw this issue (with the configure) only this week but 
haven't done anything for it, yet.

Instead of modify configure, you could try to pass --disable-werror to 
configure. That actually why I haven't see the issue before.

>> This also resolved the option/expansion ROM issue I was seeing, but
>> unfortunately simultaneously caused the card to no longer function
>> within the VM.  The error I'm seeing now from dom0 is:
>>
>> cat /var/log/xen/qemu-dm-ubuntu.log
>> xc: error: linux_gnttab_set_max_grants: ioctl SET_MAX_GRANTS failed
>> (22 = Invalid argument): Internal error
>> xen be: qdisk-5632: xc_gnttab_set_max_grants failed: Invalid argument
>
> AFAIK this one is harmless but could be fixed by updating your dom0
> kernel.
>
>> [00:05.0] pci_msix_write: Error: Can't update msix entry 0 since MSI-X
>> is already enabled.
>> [00:05.0] pci_msix_write: Error: Can't update msix entry 0 since MSI-X
>> is already enabled.
>> [00:05.0] pci_msix_write: Error: Can't update msix entry 0 since MSI-X
>> is already enabled.
>> [00:05.0] pci_msix_write: Error: Can't update msix entry 0 since MSI-X
>> is already enabled.
>
> Anthony/Stefano, are MSIs supposed to work with upstream Qemu (the
> upstream branch)?

I think there should work, yes.

> David also previous tried our branch of upstream qemu and had problems
> there too -- I thought we'd backported the basic PCI passthrough support
> but he was seeing
>          libxl: error: libxl_qmp.c:288:qmp_handle_error_response:
>          received an
>          error message from QMP server: Parameter 'driver' expects a
>          driver
>          name
> (see upthread for more details)

This is because the pci passthrough is not compiled in QEMU. I could 
maybe try to improve this error message.


-- 
Anthony PERARD